Cita APA (7th ed.)

VAUS DAVID DE. (2006). RESEARCH DESIGN- VOL. I. SAGE PUBLICATIONS.

Cita Chicago (17th ed.)

VAUS DAVID DE. RESEARCH DESIGN- VOL. I. LONDON: SAGE PUBLICATIONS, 2006.

Cita MLA (9th ed.)

VAUS DAVID DE. RESEARCH DESIGN- VOL. I. SAGE PUBLICATIONS, 2006.